1) Which element on bombarding with an atom particle gives 17 8 O?
2) The oxidation number in sulfur is +6 except for SO2- 4, S2O4^2-, Na2SO4, SO3
3) What is the reduction half-reaction for the following unbalanced redox equation?
Cr2O7^2- + NH4^+ ---> Cr2O3+ N2
2) The oxidation number in sulfur is +6 except for SO2- 4, S2O4^2-, Na2SO4, SO3
3) What is the reduction half-reaction for the following unbalanced redox equation?
Cr2O7^2- + NH4^+ ---> Cr2O3+ N2
-
I don't understand the first question
2) S2O4^-2 It is 3
Probably something like: Cr2O7^-2 + 8H+ + 5e- -----------> Cr2O3+ + 4H2O
2) S2O4^-2 It is 3
Probably something like: Cr2O7^-2 + 8H+ + 5e- -----------> Cr2O3+ + 4H2O